Antimicrobial activity of heartwood components of sugi (Cryptomeria japonica) against several fungi and bacteria

Methanol extract of sawdust of sugi (Cryptomeria japonica) heartwood was fractionated with toluene and n-hexane to give solvent-soluble and solvent-insoluble fractions. The n-hexane-soluble fraction showed the most inhibition activity among the fractions against phytopathogenic microorganisms, namel...

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Bibliographic Details
Published in:Journal of wood science 2006-12, Vol.52 (6), p.552-556
Main Authors: Matsushita, Y.(Miyazaki Univ. (Japan). Faculty of Engineering), Hwang, Y.H, Sugamoto, K, Matsui, T
Format: Article
Language:English
Subjects:
AGENT PATHOGENE
Antibacterial activity
Antifungal activity
Antimicrobial activity
ANTIMICROBIAL PROPERTIES
Bacteria
BACTERIA GRAM POSITIVA
BACTERIE GRAM POSITIF
BOIS DE COEUR
CRYPTOMERIA JAPONICA
DURAMEN
EXTRACCION POR DISOLVENTES
EXTRACTION PAR SOLVANT
EXTRACTOS DE MADERA
EXTRAIT DE BOIS
Fungi
Fungicides
Fusarium oxysporum
GRAM POSITIVE BACTERIA
Gram-negative bacteria
Heart
HEARTWOOD
Methanol
Microorganisms
n-Hexane
ORGANISMOS PATOGENOS
PATHOGENS
Phytophthora capsici
PROPIEDADES ANTIMICROBIANAS
PROPRIETE ANTIMICROBIENNE
Pythium
Ralstonia solanacearum
Sawdust
SOLVENT EXTRACTION
Solvents
Toluene
WOOD EXTRACTS
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Summary:Methanol extract of sawdust of sugi (Cryptomeria japonica) heartwood was fractionated with toluene and n-hexane to give solvent-soluble and solvent-insoluble fractions. The n-hexane-soluble fraction showed the most inhibition activity among the fractions against phytopathogenic microorganisms, namely Fusarium oxysporum, Phytophthora capsici, Pythium splendens, and Ralstonia solanacearum. Sandaracopimarinol and ferruginol, isolated from the n-hexane-soluble fraction, showed moderate antifungal activity against the three fungi and strong antibacterial activity against R. solanacearum. The content of sandaracopimarinol (7.07 g/kg based on the dried sawdust) in the heartwood was about twice that of ferruginol. Sandaracopimarinol and ferruginol strongly inhibited the growth of Gram-positive bacteria but did not show inhibitory action against Gram-negative bacteria except for R. solanacearum. The antibacterial effect of sandaracopimarinol was first found in the present study and was stronger than that of ferruginol.
ISSN:1435-0211
1611-4663
DOI:10.1007/s10086-005-0793-9